Rainwater cistern yes or no and which material?

What did you pay for the cistern (concrete or plastic?) including installation?

No idea, since it is an existing structure.

But you won't be able to compare that anyway: type of cistern, size, technology (filters, etc.), pipes, electrical connections, ground conditions, construction stage, delivery ...

If the large excavator is still there, it might be able to make a hole with a few scoops in little time and set the cistern. If the house is already built and a small excavator and lifting crane have to be used, the effort is much greater.

Hello,

what did you pay for the cistern (concrete or plastic?) including installation?

Just from a current offer in NRW:

Concrete cistern about 3.1 m3, up to 3.50 m away from the building including piping and backfilling with connection to the roof drainage: €3,754.00. If the cistern is to be connected to the toilet flushing, an additional €1,936.00 will be added for 2x toilet flushing (separate piping), outdoor tap, and fine filter incl. pump.

For BW you can safely assume 4-6% higher costs.

Rhenish regards

Concrete cistern approx. 3.1 m3, up to 3.50 m away from the building including piping and backfilling with connection to the roof drainage: € 3,754.00.

If you can get exempted from wastewater charges for the outdoor water tap, you pay more interest on the 3754 than water fees for 25 m³. And even if you cannot get exempted from the wastewater charges, the cistern only pays off (assuming an interest rate of 2.5% and a water price increase according to Destatis.de of 1.5%) after 25-30 years, provided the cistern never runs empty (which I doubt with 3.1 m³) and no other repairs (pump etc.) are required.

Would anyone really voluntarily build this on their property unless it is mandated by the municipality?

Does anyone really voluntarily build that on their property, unless it is required by the municipality?

It surprises me time and again; personally, I would rather have a well drilled

Rhenish greetings

What costs do I have to expect completely for the well drilling?